Lubricant demonstrator



, -F. CANNON.

LUBRICANT DEMONSTRATOR.

APPLICATION FILED NOV.10, 1920.

1,410,456, Patented Mar. 21, 1922.

res

FREDERICK I. CANNON, 0E IBEDFORD, OHIO,

LUBRICANT DEMONSTRATOR.

Application filed November 10, 1920. Serial No. 423,209.

To all whom it may concern:

Be it known that'l, FREDnnIo I. CANNON, a citizen of the United States, residing at Bedford, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Lubricant Demonstrators, of which the following is a specification.

This invention relates to a mechanical device to be used for exhibiting or demonstrating the qualities of lubricating greases or oils. 7

It is essential that intermeshing gears, particularly in the differential transmission mechanism of motor vehicles, shall be kept well lubricated. For this reason the gears generally operate submerged in the lubricating medium which is confined in tightly closed cases. Semi-solid lubricants, such as thick greases, are most desirable for this purpose.

Owing to the great demand for lubricants of this character, and the consequent extensive competition, there is a vast number of grease compounds, of differing utility values, on the' market. Some of these compounds are cheapened by being adulterated with useless substances and are deficient in the properties that make good lubricants.

They do not possess, or will not retain the proper degree of density, viscosity, or oiliness whichis essential to true lubricants of this class, but they are so made that their inferiority is not evident to the novice until they are put into practical use. Even when employed, in the ordinary way, the quality of the lubricant cannot be discerned by observation, due to their being obscured from view. The majority of people are not suilivciently versed in the art of lubrication to distinguish the good from the inferior without a practical demonstration, and heretofore such demonstrations have been brought about by a trial of the compound for days, weeks, or months in the gear casings, and at the end of the trial period observing the effect on the gears or bearings. This is obviously expensive and unsatisfactory.

The object of the present invention is the provision of simple, convenient, economical, and efiicient means for practically demonstrating the qualities of lubricating compounds, and oils. A further object of the invention is to produce a convenient device for the purpose set forth, that is self-contained, requiring no especial equipment for operatingg that can be carried by a salesman in'his hand luggage without damaging the contents thereof, and that 'is ever-ready for quick demonstration. The" invention provrdes a manually'operated device embodying a mechanical movement, or coactin'g'mechanical elements'operative in lubricant under similar con'ditionsas in actual practice, provislon being made for observing the action and effect of the lubricant on the elements.

With these and other'apparent objects in V ew, the invention consists in the constructi'on, combination and arrangement of parts of a modelv device, and its adaptability for the purpose set forth, as will hereinafter be fully described and definitely pointed out in the appended claims, reference being had to the accompanying drawings which are made part of thespecification, similar when en'c e characters being employed to designate corresponding parts.

In the said drawings Figure 1 is a side elevation of the demonstrating device. Fig. 2 isv an end elevation with a portion of the casing broken away on line 22 of Fig. 1.

Fig. is a top plan with a portion of the cover member-broken away.

Fig. 4 is a section on line 44: of Fig. 1, and Fig. 5 is a section on linen-5 of Fig. 3.

An embodiment of the present invention includes a casing l provided with standards 1*. The said casing is preferably of integral construction with closed sides. ends, and bottom, and open top. The top is'in a horizontalplane and has ears 1 extending laterally therefrom. A cover 2. provided with an ob servation opening 2 is adapted for attachment to the casing. lover the top thereof, stud bolts 3 and knurled nuts 4 being pro vided for that purpose, the bolts extending upward from the ears 1 through apertures in the cover member to receive the nuts 4. The cover 2 is provided with a down-turned flange or skirt 2". A transparent element 5, preferably a glass plate, is interposed between the open top of the casing l and the cover member 2, gaskets 6 of felt or other suitable material being provided on both sides of the glass. These gaskets have a double function, as they form a tight joint between the cover frame 2 and the casing 1, and also protect the glass member 5 against breakage when the nuts 4 threaded on the bolts 3, are firmly seated on the top of the frame 2 in the proper assembling of the device.

Co-acting spur gears, operative within the casing l are visible through the opening 2? of the cover and the transparent plate 5. In the present embodiment, a master gear 7 is lreyed on a shaft 8 which is mounted in lateral bearings centrally located in the easing. The gear 7 is in mesh with gears 9 and it) which are keyed on stub shafts 11 and 12, respectively, said stub shafts being mounted in the casing in the same horizon tal plane as the shaft 8. Blind bearings 1 are provided in the casing 1 on one side for the shafts 8, 11 and 12, while the hearings on the opposite side, for shafts l1 and 12 are in plugs 13 which are threaded into the casing. The shaft 8 extends through a stuffing box 14-, and has an operating crank 15 attached thereto.

l/Viththe cover members 2 and 5 removed, the chamber in the casing, around the gears,

ischarged with grease or oil, as shown in' Fig. 5, G representing the lubrlcatmg materiali The members 5 and 2 are then placed 111 their proper relative positions on the casing'andclamped thereto by the nuts 4 ac ing on the bolts 3. The lubricant is conhned inthe casing, all posslblllty of leakage being overcome by the gasketsv invthe cover,

and the peculiar construction of the bearings m the sidesof the casmg.

fit; will readily be seen that the gears may 7 a well as to their-customers.

What I claim and desire to secure by Letters Patent is.

i. A lubricant demonstrator, comprising agleak-proof casing, interengaging mechanism operative in lubricant confined in said casing, means for manually operating said mechanism, and a transparent closure member on said casing, through which the interior mechanism and lubricant are visible.

2. in a mechanical device for demonstrating lubricating compounds, a casing, a train oi gears housed in said casing and operative in lubricating compound confined in said casing, means for manually operating said gears, and a transparent, removable cover on the casing.

3-. in a mechanical device for demonstrating lubricants, an integral casing providing a chamber open at the top, interengaging mechanical elements housed in said casing and operative in said chamber in lubricant prwidcdand confined therein, means for manually operating said elements, and a transparent closure member for the top of the casing.

4:. In a mechanical device for demonstratlie qualities of lubricants, a casing prong a chamber open at the top, coacting .'s mounted in said chamber in transverse l i-i-ings provided in the casing, means for r .annally operating said gears,lubricant coni'ined in said chamber around the gears, means For preventing leakage of the lubrime through the bearings, a transparent ro er for the top of the chamber, and means for sealing said cover on the casing;

In a mechanlcal devlce for demonstratthe qualities of lubricants, an mtegral com-ting gears mounted in said chamber in transversebearings provided in the casing, means for manually operating said gears, lnbri ant confined in said chamber around FREDERICK I. cannon. Y

casing providing a chamber openat the top,

nears means for reventin leaka e 1 7 t; 

